| APM | Acute Purulent Meningitis |
|---|---|
| OMPA | octamethyl pyrophosphoramide; otitis media, purulent, acute |
| OMPC, OMPCh | otitis media, purulent, chronic |
| PND | paroxysmal nocturnal dyspnea; partial neck dissection; postnasal drainage; postnasal drip; postnatal... |
| PP | diphosphate group; emphysema [pink puffers]; near point of accommodation [Lat. punctum proximum]; pa... |